Cycling Performance of Mn2O3 Porous Nanocubes and Hollow Spheres for Lithium-ion Batteries

Sun, Qian1; Leung, Tik Lun1; Sing, Kam Chun1; Djurisic, Aleksandra B.1; Xie, Mao Hai.1; Ng, Alan. M. C.2; Li, Hangkong3; Shin, Kaimin3

10.1117/12.2251966

2017

1996756X

1996-756X

OXIDE-BASED MATERIALS AND DEVICES VIII

10105

San Francisco, CA, United states

1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA

SPIE-INT SOC OPTICAL ENGINEERING

Mn2O3 is a promising anode material for lithium ion battery. Two different kinds of structures of Mn2O3 were synthesized via solution processes, the Mn2O3 porous cubes and hollow spheres. Scanning electron microscope images and transmission electron microscopy images clearly show the structures. Electrochemical impedance spectroscopy and cyclic voltammetry measurements were used to characterize their electrochemical properties. As anode materials for lithium ion batteries, Mn2O3 porous cubes performed similarly as Mn2O3 hollow spheres. Both samples started with high initial capacities (1583.2 mAh/g and 1550.7 mAh/g) which were reduced to 173.3 mAh/g and 162.0 mAh/g at 100th cycle at a current density of 100 mA/g. The decrease is likely due to morphology destruction the materials in charging and discharging process.

Lithium ion battery Mn2O3 Morphology Porous structures Porous cubes Hollow spheres

其他

英语

CPCI-S ; EI

University of Hong Kong[]

Optics

Optics

WOS:000405598700039

20172103696287

Anodes ; Cyclic voltammetry ; Electrochemical impedance spectroscopy ; High resolution transmission electron microscopy ; Ions ; Manganese oxide ; Morphology ; Scanning electron microscopy ; Spheres ; Transmission electron microscopy

Electron Tubes:714.1 ; Optical Devices and Systems:741.3 ; Chemistry:801 ; Electrochemistry:801.4.1 ; Chemical Products Generally:804 ; Materials Science:951

Web of Science

1.Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
2.South Univ Sci & Technol China, Dept Phys, Shenzhen, Peoples R China
3.Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China

Sun, Qian,Leung, Tik Lun,Sing, Kam Chun,et al. Cycling Performance of Mn2O3 Porous Nanocubes and Hollow Spheres for Lithium-ion Batteries[C]. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2017.